Driver for Futaba-24-SD-01 VFDisplay

Schematic, PCB, Driver, Example

Scroll Action (driver based)

Code

ATTINY2313 (Atmel) AVR assembler based driver
- 127 ASCII characters (with descender) - 8 user defined custom characters
- optional character scroll
- SPI slave interface
- brightness control
- filament voltage control
- display power off

Arduino examples
- scrolling time display
- custom chars

Display

Front View (V3)
24 character, 5 x 7 dots each, bright greenish blue
left below display unused LED pads

Back View (V3)
8 voltage drivers, 8 shift registers, ATTINY2313, filament supply bridge, power MOSFET, MC34063 stepup

Schematic and PCB

Schematic (V4)
MC34063 stepup, 8 voltage drivers, power MOSFET, 8 shift registers, ATTINY2313, filament supply bridge

PCB (V4)

Assemble

I used Avra 1.3.0 assembler and adapted the tn2313def.inc of AtmelStudio (commented out pragmas).
Alternatively you can adapt the point directives (.define) of my assembler source to make it work with AtmelStudio assembler.

History

V3
initial version
V4
schematic and PCB corrections
V5
software update, hex-files, assembler hint

Links

http://www.futaba.com/products/display_modules/lcd_emulator/downloads/pdfs/LCD_Emulators.pdf
https://www.microchip.com/wwwproducts/en/ATtiny2313
http://www.ti.com/lit/ds/symlink/sn74hc595.pdf
http://www.tosharp.cn/ckfinder/userfiles/files/DATASHEET/IC/TD62783AFG(5%2CS%2CEL).pdf
http://www.ti.com/lit/an/slva252b/slva252b.pdf
https://www.noritake-elec.com/technology/general-technical-information/vfd-operation
https://threeneurons.wordpress.com/vfd-stuff/

qrti / VFD-Futaba-24-SD-01